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Great Falls, MT Weather Forecast for 5-Days

Updated: Fri Apr 10th 2026 11:45 AM MDT

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Great Falls, MT Weather – 4-10 – Sunny
69° / 35°
Sunny
Daytime highs will reach 69°F with lows dropping to 35°F in Great Falls, where bright and sunny conditions. Winds will be light at 8mph and gusts of 15.5mph at 11 PM. Humidity levels should be comfortable, sitting around 39% on average, the maximum being 59% at 11 PM and 19% being its lowest at 3 PM. Barometric pressure is its highest of 29.87inHg at 12 PM, a lowest point of 29.66inHg at 11 PM with an avg 29.73inHg.
Great Falls, MT Weather – 4-11 – Scattered Showers
67° / 44°

Weather Tomorrow

Scattered Showers
In Great Falls, passing showers are likely with a high near 67°F and a low around 44°F. The chance of rain is 88% with an estimated 0.15in. Winds will be strong at speeds peaking at 22mph and gusts of 25mph at 4 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 91% at 2 AM and 36% being its lowest at 3 PM. Barometric pressure is its highest of 29.7inHg at 1 AM, a lowest point of 29.43inHg at 3 PM with an avg 29.55inHg.
Great Falls, MT Weather – 4-12 – Partly Cloudy
57° / 39°
Partly Cloudy
Great Falls could see overcast conditions with daytime highs of 57°F and nighttime lows near 39°F. Wind will be moderate, blowing around 14mph on average and gusts of 15.9mph at 6 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 91% at 6 AM and 46% being its lowest at 12 PM. Barometric pressure is its highest of 29.62inHg at 6 AM, a lowest point of 29.46inHg at 6 PM with an avg 29.55inHg.
Great Falls, MT Weather – 4-13 – Scattered Showers
48° / 36°
Scattered Showers
In Great Falls, on and off showers are set to occur with highs near 48°F and lows around 36°F. The chance of rain is 88% with an estimated 0.02in. Wind will be moderate, blowing around 19mph on average and gusts of 29.7mph at 9 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 87% at 2 AM and 61% being its lowest at 6 PM. Barometric pressure is its highest of 29.8inHg at 12 PM, a lowest point of 29.59inHg at 5 PM with an avg 29.69inHg.
Great Falls, MT Weather – 4-14 – Sunny
53° / 33°
Sunny
Great Falls may see sunshine, with daytime highs of 53°F and overnight lows near 33°F. Winds will be strong at speeds peaking at 21mph and gusts of 32.8mph at 12 AM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 72% at 6 AM and 34% being its lowest at 3 PM. Barometric pressure is its highest of 29.85inHg at 7 AM, a lowest point of 29.7inHg at 5 PM with an avg 29.77inHg.
Great Falls, MT Weather – 4-15 – Scattered Showers
55° / 42°
Scattered Showers
In Great Falls, on and off showers are set to occur with highs near 55°F and lows around 42°F. The chance of rain is 76% with an estimated 0.01in. Wind will be moderate, blowing around 13mph on average and gusts of 20.6mph at 6 AM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 87% at 11 PM and 36% being its lowest at 3 PM. Barometric pressure is its highest of 29.73inHg at 12 AM, a lowest point of 29.5inHg at 6 PM with an avg 29.59inHg.

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